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harfbuzz/src/hb-common.h

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/*
* Copyright © 2007,2008,2009 Red Hat, Inc.
* Copyright © 2011 Google, Inc.
*
* This is part of HarfBuzz, a text shaping library.
*
* Permission is hereby granted, without written agreement and without
* license or royalty fees, to use, copy, modify, and distribute this
* software and its documentation for any purpose, provided that the
* above copyright notice and the following two paragraphs appear in
* all copies of this software.
*
* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
*
* Red Hat Author(s): Behdad Esfahbod
* Google Author(s): Behdad Esfahbod
*/
#ifndef HB_COMMON_H
#define HB_COMMON_H
# ifdef __cplusplus
# define HB_BEGIN_DECLS extern "C" {
# define HB_END_DECLS }
# else /* !__cplusplus */
# define HB_BEGIN_DECLS
# define HB_END_DECLS
# endif /* !__cplusplus */
HB_BEGIN_DECLS
#ifdef _MSC_VER
typedef signed char int8_t;
typedef unsigned char uint8_t;
typedef signed short int16_t;
typedef unsigned short uint16_t;
typedef signed int int32_t;
typedef unsigned int uint32_t;
typedef signed long long int64_t;
typedef unsigned long long uint64_t;
#else
#include <stdint.h>
#endif
typedef int hb_bool_t;
typedef uint32_t hb_codepoint_t;
typedef int32_t hb_position_t;
typedef uint32_t hb_mask_t;
typedef union _hb_var_int_t {
uint32_t u32;
int32_t i32;
uint16_t u16[2];
int16_t i16[2];
uint8_t u8[4];
int8_t i8[4];
} hb_var_int_t;
/* hb_tag_t */
typedef uint32_t hb_tag_t;
#define HB_TAG(a,b,c,d) ((hb_tag_t)((((uint8_t)(a))<<24)|(((uint8_t)(b))<<16)|(((uint8_t)(c))<<8)|((uint8_t)(d))))
#define HB_TAG_NONE HB_TAG(0,0,0,0)
hb_tag_t hb_tag_from_string (const char *s);
/* hb_direction_t */
typedef enum _hb_direction_t {
HB_DIRECTION_INVALID = -1,
HB_DIRECTION_LTR = 0,
HB_DIRECTION_RTL,
HB_DIRECTION_TTB,
HB_DIRECTION_BTT
} hb_direction_t;
hb_direction_t
hb_direction_from_string (const char *str);
const char *
hb_direction_to_string (hb_direction_t direction);
#define HB_DIRECTION_IS_HORIZONTAL(dir) ((((unsigned int) (dir)) & ~1U) == 0)
#define HB_DIRECTION_IS_VERTICAL(dir) ((((unsigned int) (dir)) & ~1U) == 2)
#define HB_DIRECTION_IS_FORWARD(dir) ((((unsigned int) (dir)) & ~2U) == 0)
#define HB_DIRECTION_IS_BACKWARD(dir) ((((unsigned int) (dir)) & ~2U) == 1)
#define HB_DIRECTION_REVERSE(dir) ((hb_direction_t) (((unsigned int) (dir)) ^ 1))
/* hb_language_t */
typedef struct _hb_language_t *hb_language_t;
hb_language_t
hb_language_from_string (const char *str);
const char *
hb_language_to_string (hb_language_t language);
/* hb_unicode_general_category_t */
typedef enum
{
HB_UNICODE_GENERAL_CATEGORY_CONTROL, /* Cc */
HB_UNICODE_GENERAL_CATEGORY_FORMAT, /* Cf */
HB_UNICODE_GENERAL_CATEGORY_UNASSIGNED, /* Cn */
HB_UNICODE_GENERAL_CATEGORY_PRIVATE_USE, /* Co */
HB_UNICODE_GENERAL_CATEGORY_SURROGATE, /* Cs */
HB_UNICODE_GENERAL_CATEGORY_LOWERCASE_LETTER, /* Ll */
HB_UNICODE_GENERAL_CATEGORY_MODIFIER_LETTER, /* Lm */
HB_UNICODE_GENERAL_CATEGORY_OTHER_LETTER, /* Lo */
HB_UNICODE_GENERAL_CATEGORY_TITLECASE_LETTER, /* Lt */
HB_UNICODE_GENERAL_CATEGORY_UPPERCASE_LETTER, /* Lu */
HB_UNICODE_GENERAL_CATEGORY_COMBINING_MARK, /* Mc */
HB_UNICODE_GENERAL_CATEGORY_ENCLOSING_MARK, /* Me */
HB_UNICODE_GENERAL_CATEGORY_NON_SPACING_MARK, /* Mn */
HB_UNICODE_GENERAL_CATEGORY_DECIMAL_NUMBER, /* Nd */
HB_UNICODE_GENERAL_CATEGORY_LETTER_NUMBER, /* Nl */
HB_UNICODE_GENERAL_CATEGORY_OTHER_NUMBER, /* No */
HB_UNICODE_GENERAL_CATEGORY_CONNECT_PUNCTUATION, /* Pc */
HB_UNICODE_GENERAL_CATEGORY_DASH_PUNCTUATION, /* Pd */
HB_UNICODE_GENERAL_CATEGORY_CLOSE_PUNCTUATION, /* Pe */
HB_UNICODE_GENERAL_CATEGORY_FINAL_PUNCTUATION, /* Pf */
HB_UNICODE_GENERAL_CATEGORY_INITIAL_PUNCTUATION, /* Pi */
HB_UNICODE_GENERAL_CATEGORY_OTHER_PUNCTUATION, /* Po */
HB_UNICODE_GENERAL_CATEGORY_OPEN_PUNCTUATION, /* Ps */
HB_UNICODE_GENERAL_CATEGORY_CURRENCY_SYMBOL, /* Sc */
HB_UNICODE_GENERAL_CATEGORY_MODIFIER_SYMBOL, /* Sk */
HB_UNICODE_GENERAL_CATEGORY_MATH_SYMBOL, /* Sm */
HB_UNICODE_GENERAL_CATEGORY_OTHER_SYMBOL, /* So */
HB_UNICODE_GENERAL_CATEGORY_LINE_SEPARATOR, /* Zl */
HB_UNICODE_GENERAL_CATEGORY_PARAGRAPH_SEPARATOR, /* Zp */
HB_UNICODE_GENERAL_CATEGORY_SPACE_SEPARATOR /* Zs */
} hb_unicode_general_category_t;
/* hb_script_t */
/* http://unicode.org/iso15924/ */
typedef enum
{
HB_SCRIPT_COMMON = HB_TAG ('Z','y','y','y'),
HB_SCRIPT_INHERITED = HB_TAG ('Z','i','n','h'),
HB_SCRIPT_ARABIC = HB_TAG ('A','r','a','b'),
HB_SCRIPT_ARMENIAN = HB_TAG ('A','r','m','n'),
HB_SCRIPT_BENGALI = HB_TAG ('B','e','n','g'),
HB_SCRIPT_BOPOMOFO = HB_TAG ('B','o','p','o'),
HB_SCRIPT_CHEROKEE = HB_TAG ('C','h','e','r'),
HB_SCRIPT_COPTIC = HB_TAG ('C','o','p','t'),
HB_SCRIPT_CYRILLIC = HB_TAG ('C','y','r','l'),
HB_SCRIPT_DESERET = HB_TAG ('D','s','r','t'),
HB_SCRIPT_DEVANAGARI = HB_TAG ('D','e','v','a'),
HB_SCRIPT_ETHIOPIC = HB_TAG ('E','t','h','i'),
HB_SCRIPT_GEORGIAN = HB_TAG ('G','e','o','r'),
HB_SCRIPT_GOTHIC = HB_TAG ('G','o','t','h'),
HB_SCRIPT_GREEK = HB_TAG ('G','r','e','k'),
HB_SCRIPT_GUJARATI = HB_TAG ('G','u','j','r'),
HB_SCRIPT_GURMUKHI = HB_TAG ('G','u','r','u'),
HB_SCRIPT_HAN = HB_TAG ('H','a','n','i'),
HB_SCRIPT_HANGUL = HB_TAG ('H','a','n','g'),
HB_SCRIPT_HEBREW = HB_TAG ('H','e','b','r'),
HB_SCRIPT_HIRAGANA = HB_TAG ('H','i','r','a'),
HB_SCRIPT_KANNADA = HB_TAG ('K','n','d','a'),
HB_SCRIPT_KATAKANA = HB_TAG ('K','a','n','a'),
HB_SCRIPT_KHMER = HB_TAG ('K','h','m','r'),
HB_SCRIPT_LAO = HB_TAG ('L','a','o','o'),
HB_SCRIPT_LATIN = HB_TAG ('L','a','t','n'),
HB_SCRIPT_MALAYALAM = HB_TAG ('M','l','y','m'),
HB_SCRIPT_MONGOLIAN = HB_TAG ('M','o','n','g'),
HB_SCRIPT_MYANMAR = HB_TAG ('M','y','m','r'),
HB_SCRIPT_OGHAM = HB_TAG ('O','g','a','m'),
HB_SCRIPT_OLD_ITALIC = HB_TAG ('I','t','a','l'),
HB_SCRIPT_ORIYA = HB_TAG ('O','r','y','a'),
HB_SCRIPT_RUNIC = HB_TAG ('R','u','n','r'),
HB_SCRIPT_SINHALA = HB_TAG ('S','i','n','h'),
HB_SCRIPT_SYRIAC = HB_TAG ('S','y','r','c'),
HB_SCRIPT_TAMIL = HB_TAG ('T','a','m','l'),
HB_SCRIPT_TELUGU = HB_TAG ('T','e','l','u'),
HB_SCRIPT_THAANA = HB_TAG ('T','h','a','a'),
HB_SCRIPT_THAI = HB_TAG ('T','h','a','i'),
HB_SCRIPT_TIBETAN = HB_TAG ('T','i','b','t'),
HB_SCRIPT_CANADIAN_ABORIGINAL = HB_TAG ('C','a','n','s'),
HB_SCRIPT_YI = HB_TAG ('Y','i','i','i'),
HB_SCRIPT_TAGALOG = HB_TAG ('T','g','l','g'),
HB_SCRIPT_HANUNOO = HB_TAG ('H','a','n','o'),
HB_SCRIPT_BUHID = HB_TAG ('B','u','h','d'),
HB_SCRIPT_TAGBANWA = HB_TAG ('T','a','g','b'),
/* Unicode-4.0 additions */
HB_SCRIPT_BRAILLE = HB_TAG ('B','r','a','i'),
HB_SCRIPT_CYPRIOT = HB_TAG ('C','p','r','t'),
HB_SCRIPT_LIMBU = HB_TAG ('L','i','m','b'),
HB_SCRIPT_OSMANYA = HB_TAG ('O','s','m','a'),
HB_SCRIPT_SHAVIAN = HB_TAG ('S','h','a','w'),
HB_SCRIPT_LINEAR_B = HB_TAG ('L','i','n','b'),
HB_SCRIPT_TAI_LE = HB_TAG ('T','a','l','e'),
HB_SCRIPT_UGARITIC = HB_TAG ('U','g','a','r'),
/* Unicode-4.1 additions */
HB_SCRIPT_NEW_TAI_LUE = HB_TAG ('T','a','l','u'),
HB_SCRIPT_BUGINESE = HB_TAG ('B','u','g','i'),
HB_SCRIPT_GLAGOLITIC = HB_TAG ('G','l','a','g'),
HB_SCRIPT_TIFINAGH = HB_TAG ('T','f','n','g'),
HB_SCRIPT_SYLOTI_NAGRI = HB_TAG ('S','y','l','o'),
HB_SCRIPT_OLD_PERSIAN = HB_TAG ('X','p','e','o'),
HB_SCRIPT_KHAROSHTHI = HB_TAG ('K','h','a','r'),
/* Unicode-5.0 additions */
HB_SCRIPT_UNKNOWN = HB_TAG ('Z','z','z','z'),
HB_SCRIPT_BALINESE = HB_TAG ('B','a','l','i'),
HB_SCRIPT_CUNEIFORM = HB_TAG ('X','s','u','x'),
HB_SCRIPT_PHOENICIAN = HB_TAG ('P','h','n','x'),
HB_SCRIPT_PHAGS_PA = HB_TAG ('P','h','a','g'),
HB_SCRIPT_NKO = HB_TAG ('N','k','o','o'),
/* Unicode-5.1 additions */
HB_SCRIPT_KAYAH_LI = HB_TAG ('K','a','l','i'),
HB_SCRIPT_LEPCHA = HB_TAG ('L','e','p','c'),
HB_SCRIPT_REJANG = HB_TAG ('R','j','n','g'),
HB_SCRIPT_SUNDANESE = HB_TAG ('S','u','n','d'),
HB_SCRIPT_SAURASHTRA = HB_TAG ('S','a','u','r'),
HB_SCRIPT_CHAM = HB_TAG ('C','h','a','m'),
HB_SCRIPT_OL_CHIKI = HB_TAG ('O','l','c','k'),
HB_SCRIPT_VAI = HB_TAG ('V','a','i','i'),
HB_SCRIPT_CARIAN = HB_TAG ('C','a','r','i'),
HB_SCRIPT_LYCIAN = HB_TAG ('L','y','c','i'),
HB_SCRIPT_LYDIAN = HB_TAG ('L','y','d','i'),
/* Unicode-5.2 additions */
HB_SCRIPT_AVESTAN = HB_TAG ('A','v','s','t'),
HB_SCRIPT_BAMUM = HB_TAG ('B','a','m','u'),
HB_SCRIPT_EGYPTIAN_HIEROGLYPHS = HB_TAG ('E','g','y','p'),
HB_SCRIPT_IMPERIAL_ARAMAIC = HB_TAG ('A','r','m','i'),
HB_SCRIPT_INSCRIPTIONAL_PAHLAVI = HB_TAG ('P','h','l','i'),
HB_SCRIPT_INSCRIPTIONAL_PARTHIAN = HB_TAG ('P','r','t','i'),
HB_SCRIPT_JAVANESE = HB_TAG ('J','a','v','a'),
HB_SCRIPT_KAITHI = HB_TAG ('K','t','h','i'),
HB_SCRIPT_LISU = HB_TAG ('L','i','s','u'),
HB_SCRIPT_MEETEI_MAYEK = HB_TAG ('M','t','e','i'),
HB_SCRIPT_OLD_SOUTH_ARABIAN = HB_TAG ('S','a','r','b'),
HB_SCRIPT_OLD_TURKIC = HB_TAG ('O','r','k','h'),
HB_SCRIPT_SAMARITAN = HB_TAG ('S','a','m','r'),
HB_SCRIPT_TAI_THAM = HB_TAG ('L','a','n','a'),
HB_SCRIPT_TAI_VIET = HB_TAG ('T','a','v','t'),
/* Unicode-6.0 additions */
HB_SCRIPT_BATAK = HB_TAG ('B','a','t','k'),
HB_SCRIPT_BRAHMI = HB_TAG ('B','r','a','h'),
HB_SCRIPT_MANDAIC = HB_TAG ('M','a','n','d'),
/* No script set */
HB_SCRIPT_INVALID = HB_TAG_NONE
} hb_script_t;
/* Script functions */
hb_script_t
hb_script_from_iso15924_tag (hb_tag_t tag);
/* suger for tag_from_string() then script_from_iso15924_tag */
hb_script_t
hb_script_from_string (const char *s);
hb_tag_t
hb_script_to_iso15924_tag (hb_script_t script);
hb_direction_t
hb_script_get_horizontal_direction (hb_script_t script);
/* User data */
typedef struct _hb_user_data_key_t {
char unused;
} hb_user_data_key_t;
typedef void (*hb_destroy_func_t) (void *user_data);
HB_END_DECLS
#endif /* HB_COMMON_H */
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